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Performance Plenum
By OE Match
- Porsche Boxster S 987 MKII 3.4L 2009-12
- Porsche Boxster 981 2.7L 2012-16
- Porsche Boxster 981 S / GTS 3.4L 2012-16
- Porsche 996 C2 3.4L 1997-08/01
- Porsche 996 C4 3.4L 1997-08/01
- Porsche 996 C2 3.6L 09/01-2005
- Porsche 996 C4 3.6L 09/01-2005
- Porsche 996 C4S 3.6L 09/01-2005
- Porsche 996 GT3 MKI 1999-02
- Porsche 996 GT3 MKII 2003>>
- Porsche 996 GT3 RS 2003-04
- Porsche 997 MK1 Carrera 2 3.6L 2005-08
- Porsche 997 MK1 Carrera 2S 3.8L 2005-08
- Porsche 997 MK1 Carrera 4 3.6L 2005-08
- Porsche 997 MK1 Carrera 4S 3.8L 2005-08
- Porsche 997 MK1 TURBO 2007-09
- Porsche 997 MK1 GT3 / GT3 RS 2007-09
- Porsche 997 MKII Carrera C2 3.6L 2009-12
- Porsche 997 MKII Carrera C4 3.6L 2009-12
- Porsche 997 MKII Carrera C2S 3.8L 2009-12
- Porsche 997 MKII Carrera C4S 3.8L 2009-12
- Porsche 997 MKII GT3 / GT3 RS 2010-11
- Porsche 991.1 Carrera C2 3.4L (350 Bhp) 2012-16
- Porsche 991.1 Carrera C2S / GTS 3.8L (400/430 Bhp) 2012-16
- Porsche 991.1 Carrera C4 3.4L (350 Bhp) 2012-16
- Porsche 991.1 Carrera C4S / GTS 3.8L (400/430 Bhp) 2012-16
- Porsche 991.1 R 4.0L (500 Bhp) 2016
- Porsche 991.1 GT3 3.8L (475 Bhp) 2014-16
- Porsche 991.2 GT3 4.0L (500 Bhp) / GT3 RS 4.0L (520 Bhp) 2017-19
- Porsche Cayman S 3.4L 987C 2005-08
- Porsche Cayman S / R 3.4L 987C MKII 2009-12
- Porsche Cayman 2.7L 981 2013-16
- Porsche Cayman S / GTS 3.4L 981 2013-16
- Porsche Cayman GT4 3.8L 2015-16
- Porsche 957 Cayenne S / GTS 4.8L 2007-10
- Porsche 958 Cayenne S V8 4.8L Petrol (400Hp) 2010-17
- Porsche 958 Cayenne GTS V8 4.8L Petrol (400Hp) 2010-17
- Porsche 970.1 Panamera S V8 4.8L 2009-13
- Porsche 970.1 Panamera 4S V8 4.8L 2009-13
- Porsche 970.1 Panamera GTS V8 4.8L 2011-13
- Porsche 970.2 Panamera GTS V8 4.8L 4WD (440Hp) 2014-16

Fits:
Porsche 918 Spyder 2015 (requires 2 per engine)
Porsche 957 Cayenne GTS 4.8L (engine 48.01+)
Porsche 958 Cayenne S / GTS 4.8L (engine code 48.52)
Porsche 970 Panamera S/ GTS 4.8L (engine codes 48.20 / 48.40 / CXPA / CXRA / CXR)
Porsche 991.1 Carrera C2 / C2S / C4 / C4S
Porsche 997.2 Carrera C2 / C2S / C4 / C4S 3.6L & 3.8L engines
Porsche 997 GT3 3.8L 2007 >> (engines 97.76)
Porsche 997 GT3 3.8L & 4.0L 2009 >> (engines 97.74 / 97.77)
Porsche 997 GT3 3.8L 2007 >> (engines 97.76)
Porsche 991 GT3 / R 3.8L & 4.0L (engines A175 / DGG / DGA / DGGB)
Not for GT3 RS
Will also fit to many other Porsches fitted with oversized 82mm IPD plenums.
In fuel injected engines, the throttle body is the part of the air intake system that controls the amount of air flowing into the engine, in response to driver accelerator pedal input in the main. The throttle body is usually located between the air filter box and the intake manifold, and it is usually attached to, or near, the mass airflow sensor.
The largest piece inside the throttle body is the throttle plate, which is a butterfly valve that regulates the airflow. Have a larger diameter throttle body produces more air flow with equals more power. The upgrades should be used in conjunction with the competition plenums.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99760511601
The product you are viewing cross references to these numbers
OEMatch Performance Plenum — Fit, Function, Confidence
OEMatch Performance Plenum for Porsche models improves intake breathing and throttle feel by reshaping the air distribution chamber between the throttle body and runners. Many owners search for genuine or OEM performance plenums; these are direct-fit alternatives designed to match the original form, fit and function.
Available Types
- Aluminium single-piece plenums
- Carbon-fibre composite plenums
- High-flow billet designs
Understanding OEMatch Performance Plenum
OEM (Original Equipment Manufacturer) parts are made by the same company that produced your Porsche’s original performance plenum.
OE (Original Equipment) refers to parts matching original specifications for the performance plenum and may be supplied by alternative manufacturers. Aftermarket parts offer alternative options, sometimes with enhanced features or better value. OEMatch supplies non-OEM performance plenum engineered as direct-fit alternatives to OEM parts, made to original-spec dimensions and tolerances for Porsche models.
A performance plenum serves as the intake air distribution chamber that balances airflow between cylinders; improving internal flow geometry reduces turbulence, raises local air velocity and helps maintain consistent cylinder filling across the rev range.
Benefits Include
- Improved airflow distribution for more consistent combustion
- Sharper throttle response and stronger mid-range torque delivery
- Reduced pressure loss and smoother engine breathing under load
Why Performance Plenum Wear and Fail
- Cracks or leaks from heat cycling and vibration
- Carbon and oil deposits restricting internal passages
- Deteriorated gaskets or seals leading to pressure loss
- Deformation of plastic elements under sustained heat or boost
The Importance of Replacing with OEMatch Performance Plenum
Replacing a degraded plenum restores proper air distribution and helps recover throttle response, drivability and fuel-air stability for Porsche engines. OEMatch combines catalogued part references with ongoing development to supply options that suit classic and modern applications, supporting proper sealing and fitment to intake runners and throttle bodies.
Advantages
- Available in aluminium, carbon fibre and composite constructions
- Precision-machined sealing faces and mounting interfaces
- Designed for compatibility with factory throttle bodies and intake plumbing